IMO, the king is suck at being husband.
I think it's not entirely his fault
He was basically forced to marry the Queen and and move his commoner wife out of the palace or risk her getting murdered. She was murdered anyway but he did try to protect her. As for being a bad husband to the Queen, I think that's deserved considering the Queen killed his other wife and keeps trying to kill his son.
I don't think he's a shit husband. I do think he's a shit parent though. He let the Queen do whatever she wanted in regards to Edward which is insane considering he knows she hates him and will try to kill him. He also hates Joffrey who basically didn't do anything wrong. It's unclear if the King knows that Joffrey isn't biologically his kid, but either way, it's not Joffreys fault that his mother is insane. He's a horrible father to both Edward and Joffrey.
Well, then he could have said no to the marriage alliance. He wanted the queen's dowry to fill the empty coffers, WITHOUT doing his duty. Man, I hope someone will Isekai into the queen, hopefully before she gets married or maybe immediately, enjoy her wealth without giving a dime to the effing king and his mistress.
I know artist has their own style but this one seems to have serious beef to that face. The suffering guys always have the same face and they're also always the a$$ho!E who seems deserves? the suffering.